when do people smoke cigarettes Psychometric study reveals why really like smoking | The Independent Current Cigarette Smoking Among Adults
Description
Reversibility post-cessation : Evidence suggests partial restoration of oral and gut microbiota after smoking cessation (e.g., Neisseria recovery in saliva, Lactobacillaceae increase with modified-risk products), but long-term ecological resilience and its health implications require longitudinal human cohort studies

Severe emphysema can cause great torment to the sufferer, due to the likelihood of becoming so tired as to render the patient bedridden
Smoking also raises blood pressure

They want to quit
